 Their main occupation is fishing, in the Danube for the Lipovans in Tataritsa and in Lake Varna for those in Kazashko.Following the Russo-Turkish War of 1877-78, largely fought on what is today Bulgarian territory, and the Liberation of Bulgaria to which it led in 1878, a transitional Russian administration was established with Prince Alexander Mikhailovich Dondukov-Korsakov as its head.Following their defeat by the Red Guards in the Russian Civil War, many White Guards fled to Bulgaria (then a monarchy) seeking refuge.